Method and system for analyzing electric metering meter anomalies

CN121679465BActive Publication Date: 2026-05-29CHONGQING LANGYIDI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING LANGYIDI IND CO LTD
Filing Date
2026-02-06
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The metering error compensation mechanism of existing electricity meters cannot synchronously sense multi-dimensional dynamic operating status, resulting in insufficient metering accuracy under complex operating conditions, making it impossible to achieve real-time modeling and optimal prediction, and affecting the long-term metering stability of electricity meters.

Method used

By collecting voltage, current, and metering chip temperature data from the electricity meter, the load rate change rate, temperature rise rate, and waveform distortion rate are extracted as feature vectors to establish a state-space model. The Kalman filter recursive algorithm is used for state prediction and measurement updates to generate multi-dimensional compensation instructions to offset metering errors.

Benefits of technology

It enables dynamic monitoring and real-time compensation of electricity meter measurement errors, significantly improving the measurement accuracy and stability of electricity meters in complex environments.

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Abstract

The application provides a power meter anomaly analysis method and system, and relates to the technical field of smart grid and power metering. The method steps include: collecting voltage, current and chip surface temperature data of the electric energy meter, extracting the load rate change rate, temperature rise rate and waveform distortion rate as feature vectors; determining a dynamic state transition matrix based on the feature vectors and a preset function relationship, and establishing a state space model with the metering error estimated value as the state variable; using Kalman filter recursion algorithm for state prediction and measurement update to obtain the optimal estimated value of the metering error at the current time; according to the optimal estimated value, generating a multi-dimensional compensation instruction through a preset compensation mapping relationship, and executing the instruction to real-time offset the estimated metering error. The application realizes real-time tracking and closed-loop compensation of dynamic error, and significantly improves the long-term operation accuracy and stability of the electric energy meter under complex working conditions.
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Citation Information

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